Pith Number

pith:QEKI2B67

pith:2022:QEKI2B67J4N3UZHWMK5GUAHFHA

not attested not anchored not stored refs pending

Coupling conditions for linear hyperbolic relaxation systems in two-scales problems

Juntao Huang, Ruo Li, Yizhou Zhou

arxiv:2207.06639 v1 · 2022-07-14 · math.NA · cs.NA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QEKI2B67J4N3UZHWMK5GUAHFHA}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-05T04:40:15.270062Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

81148d07df4f1bba64f662ba6a00e5380958005f00202c637cd58e748937e99d

Aliases

arxiv: 2207.06639 · arxiv_version: 2207.06639v1 · doi: 10.48550/arxiv.2207.06639 · pith_short_12: QEKI2B67J4N3 · pith_short_16: QEKI2B67J4N3UZHW · pith_short_8: QEKI2B67

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/QEKI2B67J4N3UZHWMK5GUAHFHA \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 81148d07df4f1bba64f662ba6a00e5380958005f00202c637cd58e748937e99d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "04de7683aaa0e13323bdb2691907d641762d02e82c1337a916672c482a1bdca5",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2022-07-14T03:25:56Z",
    "title_canon_sha256": "cc048b83161f30aef4e0f0768d09f55f3cfb6653c9168b7cd49d156733ea9196"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2207.06639",
    "kind": "arxiv",
    "version": 1
  }
}